GUERRERO_JIMENEZ, C. J.; RABERT, C. L.; SÁEZ-ARTEAGA, A.; LONCOMÁN, N.; TORRES, G.; FLORES, T.; LLANQUÍN-ROSAS, F.; VALENZUELA, M. L.; MORENO, R. EVALUATION OF BIOLOGICAL AND PHYSICOCHEMICAL RELATIONSHIPS AS INDICATORS OF WATER QUALITY IN TOLTÉN RIVER BASIN, ARAUCANÍA, CHILE: PRELIMINARY RESULTS. Journal of the Chilean Chemical Society, v. 66, n. 4, p. 5307-5311, 28 Dec. 2021.